[Q] No sound or speeh during calls

I have been facing a new problem since this morning on my HTC One M7 running ARHD. When I am attempting to make a regular phone call I am not getting any dialer tone, the receiver answers my call but there is no sound being sent from my phone to him nor I can get any sound from the person I am calling. I tried making varioud VOIP calls thorugh Viber, Google hangouts etc. they seem to be working perfectly. What could be the problem!?

PS: This is urgent, as I need to get my one and only phone working to make phone calls!

I have been facing a new problem since this morning on my HTC One M7 running ARHD. When I am attempting to make a regular phone call I am not getting any dialer tone, the receiver answers my call but there is no sound being sent from my phone to him nor I can get any sound from the person I am calling. I tried making varioud VOIP calls thorugh Viber, Google hangouts etc. they seem to be working perfectly. What could be the problem!?

PS: This is urgent, as I need to get my one and only phone working to make phone calls!

Yesterday I started experiencing the exact same problem as yashodhan92: No audio in either direction of the call. In the past a simple reboot has solved the problem but this time it didn't work. And just like the OP, VoIP services worked normally. I was hesitant to perform a Clear all data but felt I had nothing to lose after a day and a half without the ability to make or receive calls with the native phone app. I performed the clear data and rebooted. Phone is back! Thanks a ton!

FYI, I have an HTC One M7 running MaxHD 42.0.0 (Android 4.4.3/Sense 6.0)

Anybody got any more to offer on this??
The above fix gives me one or two calls then the problem is back. Htc support say to clear the data within the phone app. Also gives one or two calls relief then fail again.
Likewise factory reset, reported on telstra crowdsupport that this is only a temporary fix.

Htc support say they have had many hundreds of calls since Saturday, all htc one M7, all android 4.4.3, all Telstra AU customers.

My HTC One M7 is experiencing this issue reported recently for Telstra Australia users. How do you clear the data for the phone app?

To clear the data for the phone app (or any other except Google Play Services)...
Tap Settings
Tap Apps
Scroll right to the All tab
Scroll down until you find the app you want, or tap the magnifying glass and enter the name (e.g. "Phone")
Tap on the App name
Tap Clear Data
Done.

For Google Play Services, after tapping on the App name, tap the Manage Space button, then Clear All Data button.

Folks have recommended clearing data for Phone, Google Play Services, Google Play Store, Google Services Framework. These are all harmless (you might be re-asked for some permissions). But my testing shows that it is a temporary fix, likely because the Google apps reload the offending bug. I suspect we'll have to wait for a fix from HTC or Google.

Clearing Cache or data is often a good way to sort Android app problems, but bear in mind that any local data relating to the app will be lost, such as accounts/logons, media, high scores etc. so progress with caution and use your backups first.

This will cause issues with Google Play Services (and possibly other applications), however it at least allows the phone to make/take calls.

Quote:

Originally Posted by yashodhan92

Hi!

I have been facing a new problem since this morning on my HTC One M7 running ARHD. When I am attempting to make a regular phone call I am not getting any dialer tone, the receiver answers my call but there is no sound being sent from my phone to him nor I can get any sound from the person I am calling. I tried making varioud VOIP calls thorugh Viber, Google hangouts etc. they seem to be working perfectly. What could be the problem!?

PS: This is urgent, as I need to get my one and only phone working to make phone calls!

I erased all sorts of data from Google Play Services but that did not work, and I was still unable to make any calls. Then i checked the recently updated apps and noticed that HTC Lock Screen had been updated. I removed the update and Voila! It worked! Still wondering what could have gone wrong because of a Lock Screen update!

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